Event Title

Like a Gecko: Usefulness of Organic Light Responsive Materials

Presenter Information

Ashleigh Rawls, Hampton University

Location

Old Dominion University, Learning Commons at Perry Library, Room 1307

Start Date

8-4-2017 2:10 PM

End Date

8-4-2017 2:30 PM

Description

Recently Kiel University in Germany has invented technology that mimics the selective adhesive nature of a gecko’s toes. Azo benzenes as well as other cyclic organic compounds are able to photo isomerize when exposed to UV light: undergoing a cis-trans conformational change that alters its’ properties. This is detected using UV visible spectrometer to measure absorbance. In Germany this was used to create a system that when exposed to UV light would be adhesive and when exposed again would no longer have adhesive properties. Currently at Hampton University we are working to synthesis azo aryl compounds capable of both red shifting and photoisomerization. A red shift is shift in absorbance towards red or infrared light. Compounds that absorb in or near IR range are bio-compatible and have many uses in various fields. These photo switches have applications for drug delivery systems when conjugated with PEGs to form micelles.

Presentation Type

Presentation

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Apr 8th, 2:10 PM Apr 8th, 2:30 PM

Like a Gecko: Usefulness of Organic Light Responsive Materials

Old Dominion University, Learning Commons at Perry Library, Room 1307

Recently Kiel University in Germany has invented technology that mimics the selective adhesive nature of a gecko’s toes. Azo benzenes as well as other cyclic organic compounds are able to photo isomerize when exposed to UV light: undergoing a cis-trans conformational change that alters its’ properties. This is detected using UV visible spectrometer to measure absorbance. In Germany this was used to create a system that when exposed to UV light would be adhesive and when exposed again would no longer have adhesive properties. Currently at Hampton University we are working to synthesis azo aryl compounds capable of both red shifting and photoisomerization. A red shift is shift in absorbance towards red or infrared light. Compounds that absorb in or near IR range are bio-compatible and have many uses in various fields. These photo switches have applications for drug delivery systems when conjugated with PEGs to form micelles.